Pith Number

pith:R4UGSKC7

pith:2011:R4UGSKC77MDSEZFTAS35F654OP

not attested not anchored not stored refs pending

On Measurement and Computation

Fangmin Song, HaiXing Hu, Huimin Zheng, Nan Wu

arxiv:1107.3226 v2 · 2011-07-16 · physics.comp-ph · cs.CC

Open paper page JSON Open Graph Bundle Merged state Verified badge What is a Pith Number?

Add to your LaTeX paper

\usepackage{pith}
\pithnumber{R4UGSKC77MDSEZFTAS35F654OP}

Prints a linked badge after your title and injects PDF metadata. Compiles on arXiv. Learn more · Embed verified badge

Record completeness

1 Bitcoin timestamp

2 Internet Archive

3 Author claim open · sign in to claim

4 Citations open

5 Replications open

✓ Portable graph bundle live · download bundle · merged state

The bundle contains the canonical record plus signed events. A mirror can host it anywhere and recompute the same current state with the deterministic merge algorithm.

Receipt and verification

First computed	2026-05-18T04:07:05.186638Z
Builder	pith-number-builder-2026-05-17-v1
Signature	Pith Ed25519 (`pith-v1-2026-05`) · public key
Schema	pith-number/v1.0

Canonical hash

8f2869285ffb072264b304b7d2fbbc73eea404dc3edb78139eebf67c37a9c290

Aliases

arxiv: 1107.3226 · arxiv_version: 1107.3226v2 · doi: 10.48550/arxiv.1107.3226 · pith_short_12: R4UGSKC77MDS · pith_short_16: R4UGSKC77MDSEZFT · pith_short_8: R4UGSKC7

Agent API

Resolver JSON Graph JSON Events JSON Schema Signing key

Verify this Pith Number yourself

curl -sH 'Accept: application/ld+json' https://pith.science/pith/R4UGSKC77MDSEZFTAS35F654OP \
  | jq -c '.canonical_record' \
  | python3 -c "import sys,json,hashlib; b=json.dumps(json.loads(sys.stdin.read()), sort_keys=True, separators=(',',':'), ensure_ascii=False).encode(); print(hashlib.sha256(b).hexdigest())"
# expect: 8f2869285ffb072264b304b7d2fbbc73eea404dc3edb78139eebf67c37a9c290

Canonical record JSON

{
  "metadata": {
    "abstract_canon_sha256": "fda55b41267040be0eaa1d315cf01d41e4e3d7d5d948d8d313fe34f9dbc72904",
    "cross_cats_sorted": [
      "cs.CC"
    ],
    "license": "http://creativecommons.org/licenses/by/3.0/",
    "primary_cat": "physics.comp-ph",
    "submitted_at": "2011-07-16T12:52:20Z",
    "title_canon_sha256": "275b1f6b0e08cbf20be43b943e5f9ccb3d98fceb2970784bc162ed8ce345e721"
  },
  "schema_version": "1.0",
  "source": {
    "id": "1107.3226",
    "kind": "arxiv",
    "version": 2
  }
}